$SUNE
SUNation Energy, Inc. Stock $sune

$sune Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000002270121000005 Filed on August 16, 2021

Income Statement

Concept	2021 Q2	2021 Q1	2020 Q2
Revenue	$11.00M	$10.16M	$9.628M
YoY Change	14.22%	10.88%	-10.05%
Cost Of Revenue	$6.389M	$5.943M	$6.148M
YoY Change	3.92%	9.53%	-4.89%
Gross Profit	$4.608M	$4.217M	$3.480M
YoY Change	32.41%	12.83%	-17.93%
Gross Profit Margin	41.9%	41.51%	36.14%
Selling, General & Admin	$225.0K	$231.0K	$4.732M
YoY Change	-95.25%	-95.34%	-11.88%
% of Gross Profit	4.88%	5.48%	135.98%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$245.0K	$357.3K	$218.0K
YoY Change	12.39%	68.98%	-16.79%
% of Gross Profit	5.32%	8.47%	6.26%
Operating Expenses	$1.845M	$757.0K	$5.126M
YoY Change	-64.0%	-84.74%	-4.54%
Operating Profit	-$1.845M	-$757.0K	-$1.646M
YoY Change	12.09%	-38.14%	45.79%
Interest Expense	-$240.0K	-$10.00K	$260.0K
YoY Change	-192.31%	-110.0%	225.0%
% of Operating Profit
Other Income/Expense, Net	-$418.0K	-$311.0K	$279.0K
YoY Change	-249.82%	-175.75%	315.5%
Pretax Income	-$2.263M	-$1.068M	-$1.367M
YoY Change	65.54%	31.34%	28.7%
Income Tax	-$613.00	$1.203K	-$446.00
% Of Pretax Income
Net Earnings	-$2.263M	-$1.068M	-$1.936M
YoY Change	16.93%	-171.01%	-169.8%
Net Earnings / Revenue	-20.58%	-10.52%	-20.1%
Basic Earnings Per Share	-$0.74	-$0.35	-$0.21
Diluted Earnings Per Share	-$0.74	-$0.35	-$0.21
COMMON SHARES
Basic Shares Outstanding	3.075M	3.075M	9.350M
Diluted Shares Outstanding	3.075M	3.075M	9.350M

Balance Sheet

Concept	2021 Q2	2021 Q1	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$16.60M	$15.40M	$24.30M
YoY Change	-31.69%	-51.72%	41.28%
Cash & Equivalents	$14.88M	$14.75M	$20.55M
Short-Term Investments	$1.700M	$700.0K	$3.700M
Other Short-Term Assets	$857.5K	$1.330M	$879.1K
YoY Change	-2.46%	18.91%	-46.03%
Inventory	$7.932M	$8.219M	$9.942M
Prepaid Expenses
Receivables	$8.730M	$8.673M	$8.190M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$34.13M	$33.66M	$43.87M
YoY Change	-22.21%	-30.15%	-0.35%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.956M	$7.089M	$7.904M
YoY Change	-11.99%	-10.85%	-17.73%
Goodwill	$2.086M	$2.086M	$410.9K
YoY Change	407.64%
Intangibles	$2.551M	$2.662M	$3.190M
YoY Change	-20.03%
Long-Term Investments	$5.800M	$7.100M	$1.300M
YoY Change	346.15%	1675.0%
Other Assets	$10.92M	$12.36M	$5.575M
YoY Change	95.78%	1678.03%	1161.41%
Total Long-Term Assets	-$29.96M	-$29.50M	$13.48M
YoY Change	-322.29%	-441.17%	34.13%
TOTAL ASSETS
Total Short-Term Assets	$34.13M	$33.66M	$43.87M
Total Long-Term Assets	-$29.96M	-$29.50M	$13.48M
Total Assets	$4.163M	$4.163M	$57.35M
YoY Change	-92.74%	-92.68%	6.06%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.618M	$2.686M	$4.640M
YoY Change	-22.02%	0.38%	31.72%
Accrued Expenses	$3.300M	$3.400M	$4.800M
YoY Change	-31.25%	-27.66%	-7.69%
Deferred Revenue	$607.5K	$589.4K	$220.6K
YoY Change	175.34%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$7.539M	$6.717M	$9.881M
YoY Change	-23.71%	-11.62%	10.9%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$600.0K	$700.0K	$500.0K
YoY Change	20.0%	133.33%	25.0%
Total Long-Term Liabilities	$569.7K	$669.3K	$505.5K
YoY Change	12.7%	142.48%	28.76%
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.539M	$6.717M	$9.881M
Total Long-Term Liabilities	$569.7K	$669.3K	$505.5K
Total Liabilities	$8.109M	$7.386M	$10.39M
YoY Change	-21.93%	-6.22%	11.66%
SHAREHOLDERS EQUITY
Retained Earnings	-$7.772K	$1.948M	$3.830M
YoY Change	-100.2%	-67.3%	101.44%
Common Stock	$473.5K	$472.4K	$467.6K
YoY Change	1.27%	1.08%	0.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$5.833M	-$3.570M	$46.96M
YoY Change
Total Liabilities & Shareholders Equity	$52.00M	$53.11M	$57.35M
YoY Change	-9.33%	-6.56%	6.06%

Cashflow Statement

Concept	2021 Q2	2021 Q1	2020 Q2
OPERATING ACTIVITIES
Net Income	-$2.263M	-$1.068M	-$1.936M
YoY Change	16.93%	-171.01%	-169.8%
Depreciation, Depletion And Amortization	$245.0K	$357.3K	$218.0K
YoY Change	12.39%	68.98%	-16.79%
Cash From Operating Activities	$90.00K	-$219.1K	-$2.380M
YoY Change	-103.78%	-191.05%	-166.3%
INVESTING ACTIVITIES
Capital Expenditures	$1.000K	$9.000K	$32.00K
YoY Change	-96.88%	-83.93%	-3.03%
Acquisitions
YoY Change
Other Investing Activities	$50.00K	$2.100M	$2.580M
YoY Change	-98.06%	-67.99%	183.52%
Cash From Investing Activities	$50.00K	$344.9K	$2.550M
YoY Change	-98.04%	-94.7%	189.77%
FINANCING ACTIVITIES
Cash Dividend Paid		$10.76K
YoY Change		-94.32%
Common Stock Issuance & Retirement, Net		$123.4K
YoY Change		13.46%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-40.00K	50.00K	-180.0K
YoY Change	-77.78%	-118.24%	12.5%
NET CHANGE
Cash From Operating Activities	90.00K	-219.1K	-2.380M
Cash From Investing Activities	50.00K	344.9K	2.550M
Cash From Financing Activities	-40.00K	50.00K	-180.0K
Net Change In Cash	100.0K	175.8K	-10.00K
YoY Change	-1100.0%	-97.27%	-100.23%
FREE CASH FLOW
Cash From Operating Activities	$90.00K	-$219.1K	-$2.380M
Capital Expenditures	$1.000K	$9.000K	$32.00K
Free Cash Flow	$89.00K	-$228.1K	-$2.412M
YoY Change	-103.69%	-223.54%	-167.81%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Entity Central Index Key EntityCentralIndexKey	0000022701
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021Q2	jcs	Disposal Group Including Discontinued Operation Restructuring Expenses DisposalGroupIncludingDiscontinuedOperationRestructuringExpenses
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	11573499
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CY2021Q2	us-gaap	Other Long Term Investments OtherLongTermInvestments	5795340
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	7109212
CY2021Q2	us-gaap	Goodwill Goodwill	2086393
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	311746
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	413415
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55343
	dei	City Area Code CityAreaCode	952
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CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	153000
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CY2021Q2	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
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CY2021Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation
CY2021Q2	us-gaap	Disposal Group Including Discontinued Operation Costs Of Goods Sold DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold
CY2021Q2	us-gaap	Disposal Group Including Discontinued Operation General And Administrative Expense DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense
CY2021Q2	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue
CY2019Q4	us-gaap	Goodwill Goodwill
CY2021Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss
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	us-gaap	Operating Income Loss OperatingIncomeLoss	-3807395
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	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-31588
	dei	Entity Registrant Name EntityRegistrantName	COMMUNICATIONS SYSTEMS, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MI
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-0957999
	dei	Entity Address Address Line1 EntityAddressAddressLine1	10900 Red Circle Drive
	dei	Entity Address City Or Town EntityAddressCityOrTown	Minnetonka
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
	dei	Local Phone Number LocalPhoneNumber	996-1674
	dei	Security12b Title Security12bTitle	Common Stock, par value , $.05 per share
	dei	Trading Symbol TradingSymbol	JCS
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1940100
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1367222
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4099748
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2180398
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-613
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-446
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	590
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4903
CY2021Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1939487
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1366776
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-4100338
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-2175495
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-568745
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1744607
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-1939487
CY2021Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2652
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	24549
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-6647
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10097
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	35255
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-8902
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	54986
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-141005
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	37907
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15647
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	48339
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-130908
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1901580
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1919874
CY2021Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.20
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.15
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9307967
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.02
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.44
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.24
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.06
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.19
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.20
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.21
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.44
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2021Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.20
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.15
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.44
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.24
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.06
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.19
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.20
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.21
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.44
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9461861
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9350344
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9397582
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9307967
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9461861
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9350344
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9397582
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	47494727
	us-gaap	Net Income Loss NetIncomeLoss	-4100338
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	49009
	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	329968
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4794
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	242332
	jcs	Other Stock Repurchased And Retired During Period Value OtherStockRepurchasedAndRetiredDuringPeriodValue	180007
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.00
	us-gaap	Dividends Dividends	5
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	48339
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	43888819
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	45721931
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-1939487
CY2021Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	23203
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	46964179
	us-gaap	Net Income Loss NetIncomeLoss	-4100338
	us-gaap	Net Income Loss NetIncomeLoss	-430888
CY2021Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1346
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100496
CY2021Q2	jcs	Other Stock Repurchased And Retired During Period Value OtherStockRepurchasedAndRetiredDuringPeriodValue	56574
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.00
CY2021Q2	us-gaap	Dividends Dividends	3
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	37907
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	43888819
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	47392282
	us-gaap	Net Income Loss NetIncomeLoss	-430888
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	42056
	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	407584
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7609
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	176627
	jcs	Other Stock Repurchased And Retired During Period Value OtherStockRepurchasedAndRetiredDuringPeriodValue	118925
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.04
	us-gaap	Dividends Dividends	381258
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-130908
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	46964179
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	48962702
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-1935521
CY2020Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	20159
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5280
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	97459
CY2020Q2	jcs	Other Stock Repurchased And Retired During Period Value OtherStockRepurchasedAndRetiredDuringPeriodValue	10139
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.02
CY2020Q2	us-gaap	Dividends Dividends	191408
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15647
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1744607
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-4100338
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-2175495
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	505339
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	429800
	us-gaap	Share Based Compensation ShareBasedCompensation	242332
	us-gaap	Share Based Compensation ShareBasedCompensation	176627
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9534
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	260182
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	15894
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	303898
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1422527
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2200300
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-765005
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1372814
	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-18561
	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	14136
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-156341
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-409003
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1239167
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	879851
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-305375
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-671164
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	104810
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-488731
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	292657
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-921123
	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-1216374
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	292657
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2137497
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	10082
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	89240
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3984447
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	9316544
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16248
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	420000
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2130204
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	14024125
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	2136370
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	1053894
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	7992340
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2136370
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	9046234
	us-gaap	Payments Of Dividends PaymentsOfDividends	11303
	us-gaap	Payments Of Dividends PaymentsOfDividends	375742
	jcs	Proceeds From Issuance Of Common Stock Net Of Shares Withheld ProceedsFromIssuanceOfCommonStockNetOfSharesWithheld	53803
	jcs	Proceeds From Issuance Of Common Stock Net Of Shares Withheld ProceedsFromIssuanceOfCommonStockNetOfSharesWithheld	49665
	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	550000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	180007
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	118925
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-687507
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-445002
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50639
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-45588
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1792159
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6418147
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13092484
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14607510
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-17971
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4602
	us-gaap	Interest Paid Net InterestPaidNet	4639
	us-gaap	Interest Paid Net InterestPaidNet	19036
CY2021Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	4849
CY2020Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	205878
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	208650
	us-gaap	Nature Of Operations NatureOfOperations	<span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;text-decoration: underline;">Description of Business</span><p dir="ltr" style="font-family: TimesNewRoman;font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">Communications Systems, Inc. (herein collectively referred to as “CSI,” “our,” “we” or the “Company”) is a Minnesota corporation organized in 1969 that has classified its business into </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">two</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> segments: (1) the Electronics & Software segment (consisting of US-based subsidiary Transition Networks and UK-based subsidiary Net2Edge) which (i) manufactures and sells solutions that provide actionable intelligence, power and connectivity at the edge of networks through PoE products, software and services as well as traditional products such as media converters, network adapters and other connectivity products and (ii) designs, develops, and sells edge network access products, TDM (time-division multiplexing) over IP and other circuit emulation solutions, along with specialized cloud-based software solutions, primarily within the telecommunications market; and (2) the Services and Support segment (consisting of subsidiaries JDL and Ecessa), which (i) provides technology solutions including virtualization, managed services, wired and wireless network design and implementation, and hybrid cloud infrastructure and deployment and (ii) designs, develops, and sells SD-WAN (software-designed wide-area network) solutions.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">As described in Note 16 of Notes to Financial Statements, on August 2, 2021, the Company and Lantronix, Inc. completed the sale by CSI to Lantronix of all of the issued and outstanding stock of CSI’s wholly owned subsidiary, Transition Networks, Inc., and the entire issued share capital of its wholly owned subsidiary, Transition Networks Europe Limited (collectively with Transition Networks, Inc., the “TN Companies”), pursuant to the securities purchase agreement dated April 28, 2021 (“E&S Sale Transaction”).</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">For purposes of this Form 10-Q, the Company classifies its businesses into the </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">two</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> segments discussed above. Non-allocated general and administrative expenses are separately accounted for as “Other” in the Company’s segment reporting. Intersegment revenues are eliminated upon consolidation.</span></p>
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	us-gaap	Proceeds From Sale Of Other Productive Assets ProceedsFromSaleOfOtherProductiveAssets	8900000
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	2247000
CY2020Q1	jcs	Number Of Buildings Leased To Purchaser NumberOfBuildingsLeasedToPurchaser	2
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	3025000
	us-gaap	Disposal Group Including Discontinued Operation Costs Of Goods Sold DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold	2050000
	us-gaap	Disposal Group Including Discontinued Operation General And Administrative Expense DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense	500000
CY2020Q2	jcs	Disposal Group Including Discontinued Operation Restructuring Expenses DisposalGroupIncludingDiscontinuedOperationRestructuringExpenses	445000
	jcs	Disposal Group Including Discontinued Operation Restructuring Expenses DisposalGroupIncludingDiscontinuedOperationRestructuringExpenses	764000
CY2020Q2	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	-122000
	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	2039000
CY2020Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-567000
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	1750000
CY2020Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	2000
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	5000
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-569000
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1745000
	us-gaap	Restructuring Charges RestructuringCharges	764000
	us-gaap	Restructuring Charges RestructuringCharges	0
CY2021Q2	us-gaap	Restructuring Charges RestructuringCharges	0
	us-gaap	Payments For Restructuring PaymentsForRestructuring	249000
CY2021Q2	us-gaap	Restructuring Reserve RestructuringReserve	3000
CY2021Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	18166000
CY2021Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2000
CY2021Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2000
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	18166000
CY2021Q2	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	11564000
CY2021Q2	us-gaap	Short Term Investments ShortTermInvestments	1705000
CY2021Q2	us-gaap	Long Term Investments LongTermInvestments	4897000
CY2020Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	18387000
CY2020Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	7000
CY2020Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	18393000
CY2020Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	9424000
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	2759000
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	6210000
CY2021Q2	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	-260000
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	0
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1173190
CY2021Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	7217000
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	7871000
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1069925
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.95
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y1M20D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	904263
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	6.20
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y8M19D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	1069925
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	5.95
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P3Y1M20D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2129000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	242000
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	191000
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	177000
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	140000
CY2021Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	322000
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
CY2020Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	218000
CY2020Q2	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32000
CY2021Q2	us-gaap	Inventory Work In Process And Raw Materials InventoryWorkInProcessAndRawMaterials	715000
CY2020Q4	us-gaap	Inventory Work In Process And Raw Materials InventoryWorkInProcessAndRawMaterials	826000
CY2021Q2	us-gaap	Inventory Net InventoryNet	7932000
CY2020Q4	us-gaap	Inventory Net InventoryNet	8697000
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	2086000
CY2020Q4	us-gaap	Goodwill Goodwill	2086000
CY2021Q2	us-gaap	Goodwill Goodwill	2086000
CY2021Q2	us-gaap	Goodwill Gross GoodwillGross	2086000
CY2021Q2	us-gaap	Goodwill Goodwill	2086000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2991000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	440000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	2551000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2980000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	205000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	2775000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	236000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	221000000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	442000000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	426000000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	415000000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	381000000
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	666000000
	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	<span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">NOTE 9 – CONTINGENCIES</span><p dir="ltr" style="font-family: TimesNewRoman;font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-family: TimesNewRoman;font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">In the ordinary course of business, the Company is exposed to legal actions and claims and incurs costs to defend against these actions and claims. Company management is not aware of any outstanding or pending legal actions or claims that could materially affect the Company’s financial position or results of </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">operations.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: .001pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;text-indent: 0.00in;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">On June 28, 2021, CSI entered into a securities purchase agreement with a group of institutional investors (the “PIPE Investors”) to make a $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">25.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million private placement investment in CSI in connection with the closing of the previously announced merger transaction between CSI and Pineapple Energy, LLC (“Pineapple”). Proceeds of this investment will used primarily to fund Pineapple strategic initiatives. The closing of the financing is subject to approval of CSI’s shareholders and other customary conditions.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;text-indent: 0.00in;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">Under the terms of the securities purchase agreement, the PIPE Investors have agreed to purchase $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">25.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million in newly authorized CSI Series A Convertible Preferred Stock convertible at a price of $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">3.40</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> per share into CSI common stock, with </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">five year</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> warrants to purchase an additional $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">25.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million of common shares at that same price (the “PIPE Offering”). The PIPE Offering is expected to close immediately following the consummation of the CSI-Pineapple merger transaction (the “Merger”). Therefore the PIPE Investors will invest in the post-Merger company, will not be entitled to receive any cash dividends paid prior to closing and will not receive the Contingent Value Rights (“CVRs”) to be issued to pre-Merger CSI shareholders.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;text-indent: 0.00in;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">CSI and one of the PIPE Investors, CrowdOut Capital LLC (“CrowdOut”), which has agreed, subject to the satisfaction of certain closing conditions, to purchase $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">9.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million of the $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">25.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million of Series A Convertible Preferred Stock, have also entered into a non-binding letter of intent for a $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">20.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million term loan (the “Debt Transaction”) to be provided by CrowdOut to the Company to assist the combined CSI-Pineapple company fund the acquisitions of Hawaii Energy Connection (“HEC”) and E-GEAR, which are expected to close concurrently with the Merger. CrowdOut’s obligation to consummate the transactions in the PIPE Offering, including its obligation to purchase the CSI Series A Convertible Preferred Stock and warrants from the Company, is expressly conditioned on CrowdOut closing and funding the Debt Transaction pursuant to fully executed credit documents that are mutually acceptable to CSI and CrowdOut.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;text-indent: 0.00in;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">The Series A Convertible Preferred Stock will have no liquidation or dividend preference over CSI common stock and no voting rights until after converted into CSI common stock. Assuming conversion of the Series A Convertible Preferred Stock, the PIPE Investors would own approximately </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">7.35</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million shares of the Company’s outstanding common stock immediately following the closing of the PIPE Offering, representing approximately </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">22</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">% of CSI’s outstanding Common Stock after giving effect to the issuance of shares in the Merger, and approximately </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">14.7</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million shares assuming exercise of all the warrants for cash, representing </span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">approximately </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">37</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">% of CSI’s outstanding common stock after giving effect to the issuance of shares in the Merger and exercise of the warrants.</span></p><p dir="ltr" style="font-family: 'Times New Roman', 'serif';font-size: 12pt;line-height: 108%;margin-bottom: 12pt;margin-left: 0;margin-right: 0;margin-top: 0;text-indent: 0.00in;"><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">The Series A Convertible Preferred Stock and warrants will have anti-dilution provisions that would increase the number of shares issuable upon conversion or exercise, and lower the conversion or exercise price, if CSI issues equity securities at a price less than the conversion or exercise price at the time of such issuance. The securities purchase agreement also prohibits the combined company from conducting a new equity offering within </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">30</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> days of the closing, gives the PIPE Investors in the aggregate the right to purchase up to </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">25</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">% of the equity securities in future CSI-Pineapple offerings within </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">one year</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> of closing and requires </span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">30</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">-day lock-up agreements of CSI common stock by certain CSI-Pineapple officers, directors and major shareholders following the closing. In connection with the transaction, CSI has agreed to file a registration statement on behalf of the PIPE Investors allowing them to resell the common stock into which the Series A Convertible Preferred Stock is convertible and the warrants are exercisable immediately after issuance. Closing is subject to the effectiveness of this registration statement and other customary closing conditions.</span></p><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">The foregoing descriptions of the (i) securities purchase agreement, (ii) the CSI Series A Convertible Preferred Stock, (iii) the warrant, (iv) the registration rights agreement, (v) the lock up agreement between the Company, certain CSI-Pineapple officers, directors and major shareholders and the PIPE Investors, and (vi) the letter agreement dated as of June 28, 2021 between Communications Systems, Inc. and CrowdOut Capital LLC confirming that the CrowdOut $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">9.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million equity commitment is contingent on closing of the $</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;">20.0</span><span style="white-space:pre-wrap; font-family: 'Times New Roman', 'serif';font-size: 12pt;font-style: normal;font-weight: normal;margin: 0;padding: 0;"> million term loan do not purport to be complete and are qualified in their entirety by reference to the full text of these agreements, which are filed as Exhibit 10.1, 4.1, 4.2, 4.3, 10.2 and 10.3 to the Company’s Current Report on Form 8-K dated June 28, 2021 and are incorporated herein by reference.</span>
CY2021Q2	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	25000000.0
CY2021Q2	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	25000000.0
CY2021Q2	us-gaap	Warrants And Rights Outstanding Term WarrantsAndRightsOutstandingTerm	P5Y
CY2021Q2	jcs	Additional Common Shares Available To Purchase During Warrant Period AdditionalCommonSharesAvailableToPurchaseDuringWarrantPeriod	25000000.0
CY2021Q2	jcs	Term Of Company Prohibited From Conducting New Equity Offering TermOfCompanyProhibitedFromConductingNewEquityOffering	P30D
CY2021Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	117000
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021Q2	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	0
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.005
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.002
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10997000
CY2021Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6389000
CY2021Q2	us-gaap	Gross Profit GrossProfit	4608000
CY2021Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4990000
CY2021Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1279000
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-1661000
CY2021Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-279000
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1940000
CY2021Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	245000
CY2021Q2	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1000
CY2021Q2	us-gaap	Assets Assets	51997000
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9628000
CY2020Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6148000
CY2020Q2	us-gaap	Gross Profit GrossProfit	3480000
CY2020Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4732000
CY2020Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	394000
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-1646000
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	279000
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1367000
CY2020Q2	us-gaap	Assets Assets	57351000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	21156000
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	12332000
	us-gaap	Gross Profit GrossProfit	8824000
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	10161000
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2471000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-292000
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4100000
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	505000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	18791000
	us-gaap	Gross Profit GrossProfit	7217000
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	415000
	us-gaap	Operating Income Loss OperatingIncomeLoss	-2870000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	690000
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2180000
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	430000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	89000
CY2021Q2	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	11564000
CY2021Q2	jcs	Short Term Investments Fair Value Disclosure ShortTermInvestmentsFairValueDisclosure	1705000
CY2021Q2	jcs	Long Term Investments Fair Value Disclosure LongTermInvestmentsFairValueDisclosure	4897000
CY2021Q2	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	18166000
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	9424000
CY2020Q4	jcs	Short Term Investments Fair Value Disclosure ShortTermInvestmentsFairValueDisclosure	2759000
CY2020Q4	jcs	Long Term Investments Fair Value Disclosure LongTermInvestmentsFairValueDisclosure	6210000
CY2020Q4	us-gaap	Accrued Liabilities Fair Value Disclosure AccruedLiabilitiesFairValueDisclosure	550000
CY2020Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	17843000
CY2021Q2	jcs	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisTransfersNet	0

Files In Submission

Name	View Source	Status
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0000022701-21-000005-index.html	Edgar Link	pending
0000022701-21-000005.txt	Edgar Link	pending
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jcs-20210630.xsd	Edgar Link	pending
jcs-20210630x10q.htm	Edgar Link	pending
jcs-20210630x10q_htm.xml	Edgar Link	completed
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report.css	Edgar Link	pending
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$SUNE
SUNation Energy, Inc. Stock $sune

2021 Q2 Form 10-Q Financial Statement

#000002270121000005 Filed on August 16, 2021

Income Statement

Balance Sheet

Cashflow Statement

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$SUNE SUNation Energy, Inc. Stock $sune

2021 Q2 Form 10-Q Financial Statement

#000002270121000005 Filed on August 16, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SUNE
SUNation Energy, Inc. Stock $sune