STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details 1) - shares	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	18,596,774	18,079,522
Common Stock, shares issued	16,726,610	16,253,426
Total shares authorized	300,000,000
Total shares issued	29,171,715	26,279,522
Less: Treasury Stock	(1,870,164)	(1,826,096)
Total issued and outstanding	27,301,551	24,453,426
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	150,208,500
Common Stock, shares issued	1,772,894	1,255,642
Common Class B1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	4,023,400
Common Stock, shares issued	3,811,342	3,811,342
Common Class B2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	4,023,400
Common Stock, shares issued	3,811,342	3,811,342
Common Class B3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	8,165,700
Common Stock, shares issued	7,735,169	7,735,169
Common Class B4 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	781,644
Common Stock, shares issued	627,579	627,579
Common Class B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	16,994,144
Common Stock, shares issued	15,985,432	15,985,432
Common Class C [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	15,803,212
Common Stock, shares issued	838,448	838,448
Common Class D [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	16,994,144
Common Stock, shares issued	0	0
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, shares authorized	200,000,000
Common Stock, shares issued	18,596,774	18,079,522
Series B Cumulative Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable Convertible Preferred Stock, shares authorized	100,000,000
Redeemable convertible preferred stock, shares issued	10,552,941	8,200,000
Series A Perpetual Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable convertible preferred stock, shares issued	22,000
Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable Convertible Preferred Stock, shares authorized	100,000,000
Redeemable convertible preferred stock, shares issued	10,574,941	8,200,000