Accounts Receivable (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Accounts Receivable [Abstract]
Accounts receivable-net	$ 31,333,000	$ 30,688,000
Allowances for doubtful accounts	553,000	561,000
Government segment [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	7,829,000	12,597,000
Government segment [Member] | Billed [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	10,159,000	16,932,000
Government segment [Member] | Advance billings [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	(2,330,000)	(4,335,000)
Hospitality segment [Member]
Accounts Receivable [Abstract]
Accounts receivable-net	$ 23,504,000	$ 18,091,000