Divestiture and Discontinued Operations (Details) - USD ($)		12 Months Ended
	Nov. 04, 2015	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received		$ 12,100,000	$ 0
Assets
Cash		0	300,000
Operations
Benefit from income taxes		3,300,000	2,100,000
Loss from discontinued operations, net of taxes		(4,912,000)	(3,722,000)
PAR Springer Miller Systems Inc [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration	$ 16,600,000
Consideration received	12,100,000
Consideration receivable	4,500,000
Estimated fair value of the notes receivable	3,300,000
Consideration receivable upon achievement of targets	$ 1,500,000
Assets
Cash		0	300,000
Accounts receivable - net		0	1,771,000
Other current assets		0	574,000
Property, plant and equipment - net		0	986,000
Goodwill		0	6,116,000
Intangible assets - net		0	12,372,000
Assets classified as held for sale		0	22,119,000
Liabilities
Accounts Payable		0	417,000
Accrued salaries and benefits		441,000	703,000
Accrued expenses		0	87,000
Customer Deposits		0	1,103,000
Deferred service revenue		0	2,307,000
Liabilities associated with assets held for sale		441,000	4,617,000
Operations
Total revenues		14,545,000	15,746,000
Loss from discontinued operations before income taxes		(5,702,000)	(5,816,000)
Loss on disposition		(2,408,000)	0
Benefit from income taxes		3,198,000	2,094,000
Loss from discontinued operations, net of taxes		$ (4,912,000)	$ (3,722,000)