Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Current income tax [Abstract]
Federal	$ 221,000	$ 115,000
State	141,000	212,000
Foreign	267,000	757,000
Total	629,000	1,084,000
Deferred income tax [Abstract]
Federal	816,000	2,238,000
State	55,000	372,000
Total	871,000	2,610,000
Provision for income taxes	1,500,000	3,694,000
Deferred tax benefit related to discontinued operations	3,300,000	2,100,000
Deferred tax liabilities (assets)
Software development costs	1,841,000	4,984,000
Acquired intangible assets	2,088,000	2,350,000
Gross deferred tax liabilities	3,929,000	7,334,000
Allowances for bad debts and inventory	(4,804,000)	(4,524,000)
Capitalized inventory costs	(75,000)	(114,000)
Intangible assets	(1,747,000)	(2,100,000)
Employee benefit accruals	(2,050,000)	(1,715,000)
Federal net operating loss carryforward	(6,215,000)	(9,249,000)
State net operating loss carryforward	(1,111,000)	(1,104,000)
Tax credit carryforwards	(8,760,000)	(7,809,000)
Foreign currency	(33,000)	(33,000)
Other	(333,000)	(502,000)
Gross deferred tax assets	(25,128,000)	(27,150,000)
Less valuation allowance	3,421,000	3,947,000
Net deferred tax assets	(17,778,000)	(15,869,000)
Schedule of Income Tax [Line Items]
Benefit within additional paid in capital on realization of operating loss carryforward	1,600,000
Tax (benefit) expense associated with deferred tax asset valuation allowance	$ (500,000)	$ 1,600,000
Percentage for recognition of uncertain tax positions, minimum	50.00%
Computation of effective income tax rate [Abstract]
Federal statutory tax rate	34.00%	34.00%
State taxes	5.80%	11.50%
Non deductible expenses	1.00%	4.60%
Tax credits	(4.80%)	(11.70%)
Repatriation of foreign earnings	0.00%	59.80%
Foreign income tax rate differential	(1.30%)	(43.20%)
Valuation allowance	(9.50%)	41.70%
Tax Return and audit adjustments	3.80%	0.00%
Other	(1.80%)	1.40%
Total	27.20%	98.10%
State [Member]
Schedule of Income Tax [Line Items]
Tax credit carryforwards	$ 210,000
Operating loss carryforward	8,000,000
Federal [Member]
Schedule of Income Tax [Line Items]
Tax credit carryforwards	8,700,000
Operating loss carryforward	$ 19,900,000