General and Basis of Presentation (Details)		3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 13, 2020	Sep. 30, 2020 USD ($) $ / shares shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) Segment Reportingunit $ / shares shares	Sep. 30, 2019 USD ($) shares	Dec. 31, 2019 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment				1
Disaggregation of Revenue [Abstract]
Revenue		$ 47,440,000	$ 45,531,000	$ 135,029,000	$ 112,745,000
Components of Accounts Receivable [Abstract]
Billed accounts receivable		12,315,000		12,315,000		$ 11,917,000
Unbilled receivables		17,546,000		17,546,000		16,745,000
Allowance for doubtful accounts		(745,000)		(745,000)		(720,000)
Receivables - net		29,116,000		29,116,000		27,942,000
Components of Contract Liabilities [Abstract]
Contract liabilities		6,353,000		6,353,000		6,337,000
Revenue, Performance Obligation [Abstract]
Remaining performance obligation		147,000,000		147,000,000		112,400,000
Revenue recognized included in opening contract liabilities		1,700,000	1,000,000	$ 5,200,000	4,100,000
Accounts Receivable [Abstract]
Percentage of initial payment by factor of U.S. Federal government receivables				90.00%
Percentage of initial payment by factor of commercial prime contractors				85.00%
Maximum limit of sold receivables				$ 10,000,000
Sold receivables during the period		0	3,200,000	0	12,600,000
Loss recognized in selling, general and administrative expenses			12,000		45,000
Balance of sold receivables		0		0
Inventories [Abstract]
Gross inventory		4,800,000		4,800,000		2,800,000
Inventory obsolescence reserves		859,000		859,000		860,000
Software Development Costs [Abstract]
Capitalized software development costs		11,000,000		11,000,000		5,600,000
Amortization expense		400,000	400,000	1,300,000	$ 1,300,000
Accumulated amortization		$ 4,400,000		$ 4,400,000		3,100,000
Goodwill [Abstract]
Number of reporting units | Reportingunit				3
Goodwill amortization period for income tax purposes				15 years
Restricted Stock Grants [Abstract]
Restricted stock issued during the period (in shares) | shares				79,361
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares				961,000	1,858,000
Warrants exercise price (in dollars per share) | $ / shares		$ 1.665		$ 1.665
Accumulated Other Comprehensive Income [Abstract]
Cumulative foreign currency translation loss		$ (102,000)		$ (102,000)		(101,000)
Cumulative actuarial gain on pension liability adjustment		107,000		107,000		107,000
Accumulated other comprehensive income		5,000		5,000		6,000
ASC 606 [Member]
Revenue from Contract with Customer [Abstract]
Revenue accruals for multiple contracts as a result of cumulative indirect rate adjustments						$ 6,000,000
Subsequent Event [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Common stock, reverse stock split	0.794
Firm Fixed-Price [Member]
Disaggregation of Revenue [Abstract]
Revenue		39,483,000	38,660,000	113,080,000	$ 92,447,000
Time-and-Materials [Member]
Disaggregation of Revenue [Abstract]
Revenue		3,605,000	3,325,000	11,066,000	10,945,000
Cost Plus Fixed Fee [Member]
Disaggregation of Revenue [Abstract]
Revenue		$ 4,352,000	3,546,000	$ 10,883,000	9,353,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-30
Revenue, Performance Obligation [Abstract]
Remaining performance obligation percentage		47.10%		47.10%
Remaining performance obligation, expected timing of satisfaction, period		3 months		3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Performance Obligation [Abstract]
Remaining performance obligation percentage		46.60%		46.60%
Remaining performance obligation, expected timing of satisfaction, period
Minimum [Member]
Software Development Costs [Abstract]
Software development estimated useful life				2 years
Maximum [Member]
Software Development Costs [Abstract]
Software development estimated useful life				3 years
Federal [Member]
Disaggregation of Revenue [Abstract]
Revenue		$ 45,788,000	42,702,000	$ 128,756,000	105,459,000
State & Local, and Commercial [Member]
Disaggregation of Revenue [Abstract]
Revenue		$ 1,652,000	$ 2,829,000	$ 6,273,000	$ 7,286,000
Unvested Restricted Stock [Member]
Restricted Stock Grants [Abstract]
Restricted stock remained subject to vesting (in shares) | shares		59,521		59,521
Restricted stock vested on date of grant				25.00%
Restricted stock vest on anniversary of the date of grant				25.00%
Unvested Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares				60,000	957,000
Common Stock Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares				901,000	901,000