Accounts Receivable (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Accounts Receivable [Abstract]
Accounts receivable - net	$ 31,272,000	$ 30,688,000
Allowances for doubtful accounts	561,000	561,000
Government segment [Member]
Accounts Receivable [Abstract]
Accounts receivable - net	8,971,000	12,597,000
Government segment [Member] | Billed [Member]
Accounts Receivable [Abstract]
Accounts receivable - net	10,451,000	16,932,000
Government segment [Member] | Advance billings [Member]
Accounts Receivable [Abstract]
Accounts receivable - net	(1,480,000)	(4,335,000)
Hospitality segment [Member]
Accounts Receivable [Abstract]
Accounts receivable - net	$ 22,301,000	$ 18,091,000