General and Basis of Presentation (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020 USD ($) shares	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) Segment Reportingunit shares	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment			1
Disaggregation of Revenue [Abstract]
Revenue	$ 48,610,000	$ 36,048,000	$ 87,589,000	$ 67,214,000
Components of Accounts Receivable [Abstract]
Billed accounts receivable	18,420,000		18,420,000		$ 11,917,000
Unbilled receivables	20,689,000		20,689,000		16,745,000
Allowance for doubtful accounts	(738,000)		(738,000)		(720,000)
Receivables - net	38,371,000		38,371,000		27,942,000
Components of Contract Liabilities [Abstract]
Contract liabilities	6,682,000		6,682,000		6,337,000
Revenue, Performance Obligation [Abstract]
Remaining performance obligation	84,800,000		84,800,000		112,400,000
Revenue recognized included in opening contract liabilities	1,100,000.0000000000	1,200,000	$ 3,500,000	3,100,000
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	4,400,000	0	9,400,000
Loss recognized in selling, general and administrative expenses		15,000		32,000
Balance of sold receivables	0		0
Inventories [Abstract]
Gross inventory	4,200,000		4,200,000		2,800,000
Inventory obsolescence reserves	861,000		861,000		860,000
Software Development Costs [Abstract]
Capitalized software development costs	8,700,000		8,700,000		5,600,000
Amortization expense	400,000	500,000	900,000	900,000
Accumulated amortization	$ 4,000,000		$ 4,000,000		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	100,000
Accumulated Other Comprehensive Income [Abstract]
Cumulative foreign currency translation loss	$ (100,000)		$ (100,000)		(101,000)
Cumulative actuarial gain on pension liability adjustment	107,000		107,000		107,000
Accumulated other comprehensive income	7,000		7,000		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
Firm Fixed-Price [Member]
Disaggregation of Revenue [Abstract]
Revenue	41,935,000	28,857,000	73,596,000	53,787,000
Time-and-Materials [Member]
Disaggregation of Revenue [Abstract]
Revenue	3,637,000	3,691,000	7,462,000	7,620,000
Cost Plus Fixed Fee [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 3,038,000	3,500,000	$ 6,531,000	5,807,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-06-30
Revenue, Performance Obligation [Abstract]
Remaining performance obligation percentage	87.60%		87.60%
Remaining performance obligation, expected timing of satisfaction, period	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Performance Obligation [Abstract]
Remaining performance obligation percentage	11.40%		11.40%
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	$ 46,877,000	33,774,000	$ 82,968,000	62,757,000
State & Local, and Commercial [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 1,733,000	$ 2,274,000	$ 4,621,000	$ 4,457,000
Restricted Stock Grants [Member]
Restricted Stock Grants [Abstract]
Restricted stock remained subject to vesting (in shares) | shares	75,000		75,000
Restricted stock vested on date of grant			25.00%
Restricted stock vest on anniversary of the date of grant			25.00%