Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) segment shares	Dec. 31, 2018 USD ($) shares	Dec. 18, 2019 USD ($)	Jan. 01, 2019 USD ($)
Accounting Policies [Abstract]
Number of operating segments | segment	2
Property, Plant and Equipment [Line Items]
Contingent consideration liability		$ 2,500,000
Deferred compensation liability	$ 3,200,000	3,400,000
Change in fair value of contingent consideration	0	450,000
Net rental loss on rental contracts	996,000	865,000
Cost of acquired and internally developed software	13,372,000	12,412,000
Capitalized software costs	4,100,000	3,900,000
Amortization of capitalized software costs	3,300,000	3,500,000
Impairment of intangible assets	0	0
Impairment of capitalized software	$ 700,000	$ 1,600,000
Weighted average shares outstanding (in shares) | shares	16,223,000	16,041,000
Fair value calculation percentage	80.00%
Goodwill, measurement input	3.00%
Weighting of valuation method	10.00%
Goodwill	$ 41,386,000	$ 11,051,000
Impairment of goodwill	0	0
Impairment of long-lived assets	$ 0	$ 0
Employee Stock Option
Property, Plant and Equipment [Line Items]
Incremental shares excluded from computation of diluted earnings per share (in shares) | shares	383,000	750,000
Restricted Stock
Property, Plant and Equipment [Line Items]
Incremental shares excluded from computation of diluted earnings per share (in shares) | shares	308,000	113,000
Internally developed software costs not meeting general release threshold
Property, Plant and Equipment [Line Items]
Cost of acquired and internally developed software	$ 2,500,000	$ 3,000,000
Minimum
Property, Plant and Equipment [Line Items]
Warranty period	12 months
Estimated useful lives	3 years
Fair value determination, discounts rate	13.00%
Minimum | ASU 2016-02
Property, Plant and Equipment [Line Items]
Operating lease liability				$ 4,000,000
Minimum | Developed software costs
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Warranty period	36 months
Estimated useful lives	25 years
Fair value determination, discounts rate	22.00%
Maximum | ASU 2016-02
Property, Plant and Equipment [Line Items]
Operating lease liability				$ 4,500,000
Maximum | Developed software costs
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Restaurant Magic
Property, Plant and Equipment [Line Items]
Contingent consideration liability	$ 3,300,000
Weighted average shares outstanding (in shares) | shares	908,192
Goodwill			$ 27,945,000
Brink Software
Property, Plant and Equipment [Line Items]
Change in fair value of contingent consideration liability		500,000
Obligations
Property, Plant and Equipment [Line Items]
Liability for the contingent consideration	$ 3,340,000	0
Change in fair value of contingent consideration liability	$ 0	$ 450,000